Population growth and fishery status of the Lorjuk shellfish (Solen sp.) on Pamekasan beaches, Indonesia

Author:

Trisyani N,Kamarudin

Abstract

Abstract Solen sp. is classified as a Pelecypoda which is found in certain waters in Indonesia. Solen sp. is utilized as fresh and processed food. Alarmingly, catching Solen sp. continuously will reduce the number of its population in the world. The research aims to determining the population growth of Solen sp. and its fishery status on Talang Siring Beach, Pamekasan. The results of the research show that the range of Solen sp. length is between 1.8 and 4.4 cm. The growth calculation is Lt = 5.5 (1 - e(-0.07(t + 0.006)). The growth of Solen sp. calculated by the ELEFAN I method in the FISAT II software produces the value (L = 5.5 cm, k = 0.07/year). Estimation of the length at time t0 calculated by Pauly’s empirical formula is t0 = -0.006. The natural rate of mortality (M) is 2.23/year, and the capture mortality (F) is 5.72/year and total mortality (Z) is 7.96/year. The exploitation rate (E) is 0.72/year. The conclusion of the research is that the Solen sp. on Talang Siring beach, Pamekasan is overfished. Therefore, it is necessary to regulate a fishing time and protection to Solen sp. so that the population remains everlasting and sustainable.

Publisher

IOP Publishing

Subject

General Engineering

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